Prince Calonna of Italy and Signor Marconi in London.
Prince Calonna, the Syndic of Rome - and Signor Marconi (in uniform)
Italy's Prince Calonna; the Syndic of Rome; and the Marchese Guglielmo Marconi; electrical engineer and inventor (telegraph; radio; etc.); the latter wearing Italian uniform; walk toward camera and pose; talking to each other a bit; and moving around. They are on a visit to London - purpose of their visit uncertain.
Inventions / Inventors. International relations.